CAD design at papacad.com: we create and supply professional CAD projects

Standards in 3D models, CAD 2D & 3D drawings

   papacad.com offers professional CAD designs. Both in 3D models and assemblies as well as complete 2D DWG drawing documentation. Our CAD designs are created in leading CAD softweare such as Inventor 2014 and Solid Works 2017. We create CAD projects in a team of experienced mechanical engineers. Our pack attach significant importance to the quality of 3D models and 2D CAD flat drawings.

   Thus   2D CAD DWG executive documentation is created on the basis of professional advanced models and 3D assemblies. All CAD drawings are created solely on 3D models basis. Each CAD design is unique and reflects contemporary design trends in mechanics. Standards using by us in projects are according to ISO and EN. Electric engines, pneumatic and hydraulic actuators are given according to producers catalogues.

Our CAD projects are available as a purchase and for free download. Our aim is to create with the same attention to detail and quality level for paid and free products.

Complete CAD designs, 2D drawing documentations or CAD 3D models that you can download are always packed with ZIP (available as a component of most operating systems.) If you find this lack, you can download it for free: Winzip , 7Zip, WinRAR.

Every ZIP package with a CAD design there are complete set of files of a given project.

This means that the ZIP package with the documentation that you downloaded contains complete set of components chosen type of documentation.

A single CAD design is placed in a catalog with a name describing: project theme, documentation type (Inventor 3D & 2D 2014, AutoCAD Mechanical 2004, 3D STEP, etc.).

Within the directories there is a structure for identifying directories and CAD files.

Folder and file structure of every our CAD design is as follows:

When you open the Inventor .ipj project file, you will see an identical structure as in the operating system browser:

CAD standards for CAD designs

The main assembly and subassembly also have a specific hierarchy, which is result from the construction of the device and the importance of the subassemblies in the structure:

The main assembly and subassembly also have a specific hierarchy resulting from the construction of the device and the importance of the subassemblies in the structure.

 

Autodesk Inventor layout

When any 0f the 3D CAD design is opening by Inventor , you will see a tree manager on the left, with the structure of the project and the names of the files. These names closely match the file names in the project directories stored on the disk. Each CAD file in our CAD designs has a strictly established name and location that uniquely identifies it in the project structure:

CAD files structure in project

3D layouts have a structured naming and physical structure. This makes it easy for anyone to understand the design, attachments, dependencies and location.

DWG download CAD files

Inventor DWG and AutoCAD DWG 2D CAD drawings has the same naming conventions as 3D models related to CAD files naming. Keeping proper CAD files and CAD drawings names allows to maintain clarity. Increases the speed of finding the right files, CAD drawings, and keeps working on the project “in check”:

 2D drawings files

3D parts and 2D CAD drawings names in BOM tables also have an identical hierarchy. CAD drawings nubering is compliant with worldwide ISO standard. Every engineer familiar with the naming and numbering method of technical drawings reads our 2D working documentation without any problems:

2D drawings DWG

The table in 2D CAD drawings contains information about:

  • the name of the CAD project,
  • name of the parent assembly,
  • drawing number,
  • change number,
  • sheet size,
  • number of sheets of one CAD drawing,
  • scale,
  • CAD designer.
  • producer,
  • weight,
  • designing date,
  • projection method (European, US)

BOM list contains:

  • name of part,
  • CAD drawing number or standard,
  • item number,
  • item quantity,
  • revision number,
  • material,
  • weight,
  • comments.

BOM 2D drawing stadnards

All necessary informations are given in assembly 2D CAD drawings, 3D  drawings and working DWG drawings.  Therefore assembling and producing process is easy:

  • numbering,
  • fittings,
  • tolerances,
  • deviations,
  • production conditions,
  • production methods,
  • technological annotations, etc.

cad drawings

Free CAD drawings and purchase CAD documentation for download

General standards of 3D and 2D CAD designs at papacad.com

Standards of 3D CAD designs, 3D models and assemblies:

  • Global Unit System – SI (metric)
  • Mechanical projects guideline – European Machinery Directive 2006/42 / EC
  • Selection of structural components – calculations of strength, performance and durability (Directive 2006/42 / EC)
  • Components  selected – European standards EN – ISO (European producers database or global)
  • Standarized parts – EN ISO standard – inside project folder
  • 3D parts, sufraces – NURBS

Technical 2D drawings standards:

  • projection of 2D drawings – european method  EN ISO 5456-2: 2002
  • dimensioning, general rules – ISO 128
  • 2D documentation – Inventor DWG 2014
  • 2D export : AutoCAD 2004 DWG and PDF

NOTE: Files with appropriate calculations may not be in each CAD project!

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